Parfit’s P

Philip Pettit, Michael Smith

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

In Reasons and Persons, Derek Parfit describes two theories of rationality, the Self00ADinterest Theory, S, and the Present-aim Theory, P. ‘S and P are simply related: they are both theories about rationality’ (p. 129). Parfit thinks that S represents an overwhelming orthodoxy. ‘The Self-interest Theory has been believed by most people for more than two millennia’ (p. 194). P is not a single theory, but rather a class of theories, and Parfit thinks that one of those versions of P which he describes as critical-CP-is the best theory. He rejects some versions of CP, but leaves a number of candidates in the field. ‘We should reject the Self-interest Theory about rationality, and accept the Critical Present-aim Theory’ (p. 450).

Original languageEnglish (US)
Title of host publicationMind, Morality, and Explanation
Subtitle of host publicationSelected Collaborations
PublisherOxford University Press
Pages295-321
Number of pages27
ISBN (Electronic)9781383039337
ISBN (Print)9780199253364
DOIs
StatePublished - Jan 1 2024

All Science Journal Classification (ASJC) codes

  • General Arts and Humanities

Keywords

  • Parfit
  • describes
  • orthodoxy
  • rationality
  • reject

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